NURSING ANM AND GNM

NURSING EXAM QUESTIONS

TOXICOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Carbon monoxide combines with what component of blood?
A
Hemoglobin
B
Carboxyhemoglobin
C
A and B anigens
D
oxyhemoglobin
Explanation: 

Detailed explanation-1: -Carbon monoxide combines with hemoglobin to form carboxyhemoglobin at any or all of the oxygen-binding sites of hemoglobin, and also acts to increase the stability of the bond between hemoglobin and oxygen, reducing the ability of the hemoglobin molecule to release oxygen bound to other oxygen-binding sites.

Detailed explanation-2: -More videos on YouTube Carbon monoxide is a competitive inhibitor to oxygen when it comes to binding to the heme group of hemoglobin. In fact, carbon monoxide is about 250 times as likely to actually bind to the heme group of hemoglobin than is oxygen.

Detailed explanation-3: -Final answer: Carbon dioxide combines with haemoglobin to form Carbaminohaemoglobin.

There is 1 question to complete.